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Topic: Monoclinic

Related Topics

Triclinic

Orthorhombic

Rhombohedral

Cubic (crystal system)

Crystal system

Crystal structure

Bravais lattice

Cyclic group

Orthogonal

Iron (II) sulfate

Crystal

Baddeleyite

Cubic

Zirconia

Iron(II) sulfate

	Bob's Rock Shop: Introduction to Crystallography and Mineral Crystal Systems
		The axes are designated as follows: the inclined axis is a and slopes out of the paper towards the viewer, the vertical axis is c, and the remaining axis which is at right angle to the plane of the a and c axes is b.
		The second monoclinic symmetry class is m and represents a single vertical mirror plane (010) that includes the c and a crystallographic axes.
		The third monoclinic symmetry class is 2 and represents a 2-fold axis of rotation on the b crystallographic axis.
	www.rockhounds.com /rockshop/xtal/part7.html (1188 words)

	Monoclinic -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-29)
		In (The branch of science that studies the formation and structure of crystals) crystallography, the monoclinic (Click link for more info and facts about crystal system) crystal system is one of the 7 lattice (Click link for more info and facts about point group) point groups.
		In the monoclinic system, the (A crystalline element used as a component in various electronic devices) crystal is described by vectors of unequal length, as in the (Click link for more info and facts about orthorhombic) orthorhombic system.
		There exist two monoclinic (A 3-dimensional geometric arrangement of the atoms or molecules or ions composing a crystal) Bravais lattices: the simple monoclinic and the centered monoclinic lattices.
	www.absoluteastronomy.com /encyclopedia/m/mo/monoclinic.htm (186 words)

	MSN Encarta - Multimedia - Monoclinic Crystal
		Gypsum is an example of a mineral exhibiting a monoclinic crystal structure.
		Monoclinic crystals have three axes of unequal length, two of which are perpendicular to the third axis, but not to each other.
		A soft, sedimentary rock, gypsum is the source of plaster of Paris and also has applications in agriculture and construction.
	encarta.msn.com /media_461531601/Monoclinic_Crystal.html (54 words)

	Amethyst Galleries - THE MONOCLINIC SYSTEM
		The monoclinic system is the largest symmetry system with almost a third of all minerals belonging to one of its three classes.
		The highest monoclinic symmetry class is the 2/m class with both operations being present.
		By comparison, the other two classes of the monoclinic system are found lacking with a significant decrease in minerals representing them.
	mineral.galleries.com /minerals/symmetry/monoclin.htm (490 words)

	Monoclinic - Wikipedia, the free encyclopedia
		There exist two monoclinic Bravais lattices: the simple monoclinic and the centered monoclinic lattices, with layers with a rectangular and rhombic lattice, respectively.
		The crystal classes that fall under this crystal system are listed below, followed by their representations in international notation and Schoenflies notation, and mineral examples.
		The number of space groups for each crystal class is 6, 3, and 4, respectively.
	en.wikipedia.org /wiki/Monoclinic (275 words)

	Monoclinic Crystal System III
		Of course the non-primary Orthohemidomes yield the corresponding non-primary Orthotetartodomes.
		The face na : b : mc generates a monoclinic clinotetartopyramid (= monoclinic dome) when subjected to the symmetry elements of the present Class : The face is duplicated by the mirror plane resulting in a monoclinic dome.
		It generates a hemihedric monoclinic clinopinacoid when subjected to the symmetry elements of the present Class : The face is duplicated by the action of the mirror plane resulting in a vertical face pair parallel to the clino axis.
	metafysica.nl /monoclinic_3.html (2639 words)

	Monoclinic Crystal System II
		The resulting shape turns out to be the left half of a tilted prism, which could be expected because a monoclinic hemipyramid is equivalent to a tilted monoclinic prism (See Figure 6a of Part One).
		Construction (derivation) of the Monoclinic Orthotetartopyramid from the Orthohemipyramid by suppressing two faces (this suppression expresses the dropping of the mirror plane) and extending the other two faces.
		From the holohedric monoclinic clinoprism can, in the same way, be derived a monoclinic clinohemiprism when it is subjected to hemimorphy.
	home.hetnet.nl /~heackel/monoclinic_2.html (2459 words)

	Cubic-to-Monoclinic Transition
		A cubic to monoclinic transition is described by four parameters: three stretches along three mutually perpendicular directions and a monoclinic angle.
		The type of monoclinic variants for the cubic-to-monoclinic observed in Ti-Ni are called monoclinic `face-diagonal' variants [1] because the unique, two-fold symmetry axis of each variant is along a face-diagonal.
		In contrast, the monoclinic variants found for alloys exhibiting the so-called faulted martensite phase are monoclinic `cubic-diagonal' variants because the two-fold symmetry axes are along the edges of the cube.
	www.aem.umn.edu /people/faculty/shield/hane/mon.html (319 words)

	Re: [ccp4bb]: Monoclinic twinning? (Site not responding. Last check: 2007-10-29)
		If the monoclinic angle in fact deviates from 90 degrees, you will have non-merohedral twinning, which means that the spots do not overlap exactly in reciprocal space, and thus you should observe splitted spots at higher resolution.
		In the case of merohedral twinning in a monoclinic space group, you won't observe this.
		The symmetry R-factors for the hypothesis "orthorhombic space group" are only considerably higher than for the hypothesis "monoclinic space group" if the twin-fraction is much smaller than 0.5, whereas in the case of perfect merohedral twinning, i.e.
	www.ysbl.york.ac.uk /ccp4bb/2003/msg00054.html (844 words)

	Monoclinic Crystal System I
		For the description of monoclinic crystals one chooses a conspicuous face of such a crystal such that it intersects all three crystallographic axes when the crystal is oriented as described above.
		Its Weissian symbol is (a : nb : -mc), the Naumann symbol is given in the Figure, and the Miller symbol is {hkl*} (for the negative hemipyramid it is {hkl}).
		It generates a monoclinic clinopinacoid when subjected to the symmetry elements of the present Class : The face is reflected in the mirror plane resulting in a vertical face pair parallel to the clino axis, the clinopinacoid.
	metafysica.nl /monoclinic_1.html (7893 words)

	E154: Sytructural Studies Of Monoclinic Chorismate Mutase (Site not responding. Last check: 2007-10-29)
		The structure of the chorismate mutase domain of E.
		The monoclinic crystals form under conditions similar to those previously reported
		The structure of chorismate mutase in the monoclinic form will be discussed.
	www.hwi.buffalo.edu /ACA/ACA97/abstracts/text/E154.html (221 words)

	A study of the electron paramagnetic resonance properties of single monoclinic crystals of bovine superoxide dismutase ...
		A study of the electron paramagnetic resonance properties of single monoclinic crystals of bovine superoxide dismutase -- Lieberman et al.
		A study of the electron paramagnetic resonance properties of single monoclinic crystals of bovine superoxide dismutase
		Monoclinic crystals of native bovine superoxide dismutase and its monocyano
	www.jbc.org /cgi/content/abstract/257/1/336 (323 words)

	Abstract for Stability of microstructure for tetragonal to monoclinic martensitic transformations (Site not responding. Last check: 2007-10-29)
		The energy density for tetragonal to monoclinic transformations has four rotationally invariant wells since the transformation has four variants.
		One of these tetragonal to monoclinic martensitic transformations corresponds to the shearing of the rectangular side, one corresponds to the shearing of the square base, and one corresponds to the shearing of the plane orthogonal to a diagonal in the square base.
		In each case that the microstructure is stable, we derive error estimates for the finite element approximation.
	www.math.umn.edu /~belik/research/four/four_abstract.html (151 words)

	Publications - Natural Sciences - University of Newcastle (Site not responding. Last check: 2007-10-29)
		The slow-cooled non-ideal monoclinic pyrrhotite exhibits thermal stability intermediate between monoclinic and hexagonal pyrrhotites.
		The critical size for the monodomain/multidomain transition in synthetic monoclinic pyrrhotite, at about 1 mu m, is essentially the same as that previously determined for natural pyrrhotite grains in rocks.
		The observations suggest that the domain walls lie normal to the c-axis of the structure, consistent with the known magnetocrystalline anisotropy symmetry of monoclinic pyrrhotite.
	www.ncl.ac.uk /nsci/research/physics/pubs/abs139.htm (427 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-10-29)
		Although monoclinic models may be rather common for fractured formations, they have hardly been used in seismic methods of fracture detection due to the large number of independent elements in the stiffness tensor.
		In order to facilitate the inversion procedure, the authors introduce a Thomsen-style parametrization for monoclinic media that includes the vertical velocities of the P-wave and one of the split S-waves and a set of dimensionless anisotropic coefficients.
		The parameter-estimation algorithm, based on NMO equations valid for any strength of the anisotropy, is designed to obtain anisotropic parameters of monoclinic media by inverting the vertical velocities and NMO ellipses of the P-, S{sub 1}- and S{sub 2}-waves.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=20076110 (311 words)

	Etching patterns on the monoclinic and orthorhombic paracetamol (Site not responding. Last check: 2007-10-29)
		The initial stages of etching the monoclinic (I) and the orthorhombic (II) polymorphs of paracetamol crystals by a series of agents (10%-solutions of acetic anhydride, pyridine, 1,4-dioxane, morpholine, N-methylmorpholine in carbon tetrachloride) were studied and the corresponding etching patterns were compared.
		For the first time, it was possible to observe different etching patterns when dissolving not only the faces of the crystals parallel to molecular layers, but also the faces normal to the molecular layers.
		The present contribution reports on the results of a comparative study of the etching patterns on the (010) – and the (001)-faces of the crystals of the monoclinic (space group P2 /a) and of the orthorhombic (space group Pbca) polymorphs of paracetamol, which differ in the structure of the hydrogen-bonded 2D-layers.
	www.arkat-usa.org /ark/journal/2004/I12_Konovalov/1232/1232.asp (3064 words)

	Crystal Structure of Tetragonal and Monoclinic Polytypes of Tschernichite, the Natural Counterpart of Synthetic Zeolite ...
		The tetragonal and monoclinic polytypes of tschernichite (the natural counterpart of zeolite beta) from Mt. Adamson (Antarctica) were isolated and studied by single-crystal X-ray diffraction using a diffractometer equipped with a CCD detector.
		The two crystalline phases isolated are characterized as two MDO polytypes, tetragonal and monoclinic with different crystal sizes (small and large crystals, respectively), morphologies (single tetragonal dipyramids and radiating hemispherical groups, respectively), and chemistries (high and low Si/Al ratio, respectively).
		Many independent sites were identified in both polytypes: in the monoclinic type three sites are occupied by Ca, whereas in the tetragonal three are occupied by Ca and one by Mg.
	pubs.acs.org /cgi-bin/abstract.cgi/jpcbfk/2002/106/i39/abs/jp021222h.html (274 words)

	Sulfur Properties (Site not responding. Last check: 2007-10-29)
		Both the rhombic and monoclinic crystalline modifications of sulfur are made up of eight sulfur atoms arranged in a puckered-ring structure.
		Above 95.4ºC to the melt temperature of 118.9ºC, the monoclinic crystalline structure is dominant.
		Rhombic and monoclinic sulfur are soluble to a limited extent in most organic solvents.
	georgiagulfsulfur.com /properties.htm (369 words)

	A Monoclinic Post-Stishovite Polymorph of Silica in the Shergotty Meteorite -- Goresy et al. 288 (5471): 1632 -- Science
		A Monoclinic Post-Stishovite Polymorph of Silica in the Shergotty Meteorite -- Goresy et al.
		A Monoclinic Post-Stishovite Polymorph of Silica in the Shergotty Meteorite
		A post-stishovite phase of silica was identified in the Shergotty meteorite by x-ray diffraction and field emission scanning
	www.sciencemag.org /cgi/content/abstract/288/5471/1632 (402 words)

	Definition of monoclinic - Merriam-Webster Online Dictionary
		Learn more about "monoclinic" and related topics at Britannica.com
		Find more about "monoclinic" instantly with Live Search
		See a map of "monoclinic" in the Visual Thesaurus
	www.m-w.com /cgi-bin/dictionary?va=monoclinic (45 words)

	ECTOC Paper #68 (Site not responding. Last check: 2007-10-29)
		Figure S4: Comparison of monoclinic tpp, dpq (ref 12) and dpp (ref 11)
		Figure S5: Comparison of powder diffraction spectra for (a) tetragonal crystals after heating through phase change, and (b) pure monoclinic tpp.
		Figure S8: DSC data of tetragonal to monoclinic phase change.
	www.ch.ic.ac.uk /ectoc/papers/68/Supplement.html (185 words)

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